What is the next number in series? #50

(1 votes, average: 1.00 out of 5)

May 26, 2013 by puzzler 2 Comments

what is the next number in series

23, 5, 12, 3, 15, 13, ???
Hint: A way to say “HELLO”

See Solution

Next number in series will be 5.
How?
its WELCOME, where each letter is replaced by its sequence number in the english alphabets.